(adj.) suggesting an incongruity between what might be expected and what actually happens; given to irony, sarcastic
SYNONYMS: incongruous, satiric, sardonic, wry
ANTONYMS: straightforward, unequivocal

(n.) one who advocates, speaks for, explains, or interprets; (math) the power to which a number, symbol, or expression is to be raised
SYNONYMS: defender, champion, interpreter
ANTONYMS: critic, adversary, faultfinder, detractor